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Hatshy [7]
3 years ago
13

Calculate the following

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0

Answer:

S2 + 355

Step-by-step explanation:

Given the expression to evaluate :

S2+54+18+46+237

Since the values are bound by the addition operator, we take the sum of the like terms ;

S2 + (54+18+46+237)

S2 + 355

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Just cross multiply basically divide

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Determine the number of terms, n, given the geometric series 1 3 9 27 ... and sn=3280.
lina2011 [118]

The number of terms, 'n' is 8

<h3 /><h3>How to determine the number of terms</h3>

Let's determine the common ratio;

common ratio, r = 3/1 = 3

The formula for sum of geometric series with 'r' greater than 1 is given as;  Sn = a( r^n - 1) / (r - 1)

n is unknown

Sn = 3280

Substitute the value

3280 = 1 ( 3^n - 1) / 3- 1

3280 = 3^n -1 /2

Cross multiply

3280 × 2 = 3^n - 1

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This could be represented as;

3^8 = 3^n

like coefficient cancels out

n = 8

Thus, the number of terms, 'n' is 8

Learn more about geometric series here:

brainly.com/question/24643676

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5 0
1 year ago
Will mark brainliest!
ioda

Answer:

the answer is A

Step-by-step explanation:

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3 years ago
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ch4aika [34]

Answer:

rise over run

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Evaluate -2=y+5 and solve the variable
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Answer:

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Step-by-step explanation:

-2=y+5

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